summaryrefslogtreecommitdiff
path: root/Documentation/w1
AgeCommit message (Collapse)AuthorFilesLines
2006-06-22[PATCH] w1: Userspace communication protocol over connector.Evgeniy Polyakov1-0/+98
There are three types of messages between w1 core and userspace: 1. Events. They are generated each time new master or slave device found either due to automatic or requested search. 2. Userspace commands. Includes read/write and search/alarm search comamnds. 3. Replies to userspace commands. From: Evgeniy Polyakov <johnpol@2ka.mipt.ru> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-06-22[PATCH] w1: Replace dscore and ds_w1_bridge with ds2490 driver.Evgeniy Polyakov1-0/+18
2006-06-22[PATCH] w1: Added default generic read/write operations.Evgeniy Polyakov1-3/+15
Special file in each w1 slave device's directory called "rw" is created each time new slave and no appropriate w1 family is registered. "rw" file supports read and write operations, which allows to perform almost any kind of operations. Each logical operation is a transaction in nature, which can contain several (two or one) low-level operations. Let's see how one can read EEPROM context: 1. one must write control buffer, i.e. buffer containing command byte and two byte address. At this step bus is reset and appropriate device is selected using either W1_SKIP_ROM or W1_MATCH_ROM command. Then provided control buffer is being written to the wire. 2. reading. This will issue reading eeprom response. It is possible that between 1. and 2. w1 master thread will reset bus for searching and slave device will be even removed, but in this case 0xff will be read, since no device was selected. Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-03-24[PATCH] W1: Add the DS2482 I2C-to-w1 bridge driver.Evgeniy Polyakov1-0/+31
Signed-off-by: Ben Gardner <bgardner@wabtec.com> Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-06-22[PATCH] w1: Updates the w1 documentation (w1.generic)Evgeniy Polyakov1-17/+90
Updates the w1 documentation (w1.generic) Signed-off-by: Ben Gardner <bgardner@wabtec.com> Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-04-17Linux-2.6.12-rc2v2.6.12-rc2Linus Torvalds1-0/+19
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!